68054971 has 4 divisors (see below), whose sum is σ = 68091112. Its totient is φ = 68018832.

The previous prime is 68054963. The next prime is 68054977. The reversal of 68054971 is 17945086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68054971 - 2³ = 68054963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68054977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15081 + ... + 19066.

It is an arithmetic number, because the mean of its divisors is an integer number (17022778).

Almost surely, 2^68054971 is an apocalyptic number.

68054971 is a deficient number, since it is larger than the sum of its proper divisors (36141).

68054971 is a wasteful number, since it uses less digits than its factorization.

68054971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36140.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 68054971 is about 8249.5436843501. The cubic root of 68054971 is about 408.2754671667.

The spelling of 68054971 in words is "sixty-eight million, fifty-four thousand, nine hundred seventy-one".